diff options
Diffstat (limited to 'gcc/config/arm/arm.h')
| -rw-r--r-- | gcc/config/arm/arm.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h index b79e02861b5..4f0eeec6138 100644 --- a/gcc/config/arm/arm.h +++ b/gcc/config/arm/arm.h @@ -2122,6 +2122,48 @@ typedef struct #define ASM_OUTPUT_LABELREF(FILE, NAME) \ arm_asm_output_labelref (FILE, NAME) +/* The EABI specifies that constructors should go in .init_array. + Other targets use .ctors for compatibility. */ +#define ARM_EABI_CTORS_SECTION_OP \ + "\t.section\t.init_array,\"aw\",%init_array" +#define ARM_EABI_DTORS_SECTION_OP \ + "\t.section\t.fini_array,\"aw\",%fini_array" +#define ARM_CTORS_SECTION_OP \ + "\t.section\t.ctors,\"aw\",%progbits" +#define ARM_DTORS_SECTION_OP \ + "\t.section\t.dtors,\"aw\",%progbits" + +/* Define CTORS_SECTION_ASM_OP. */ +#undef CTORS_SECTION_ASM_OP +#undef DTORS_SECTION_ASM_OP +#ifndef IN_LIBGCC2 +# define CTORS_SECTION_ASM_OP \ + (TARGET_AAPCS_BASED ? ARM_EABI_CTORS_SECTION_OP : ARM_CTORS_SECTION_OP) +# define DTORS_SECTION_ASM_OP \ + (TARGET_AAPCS_BASED ? ARM_EABI_DTORS_SECTION_OP : ARM_DTORS_SECTION_OP) +#else /* !defined (IN_LIBGCC2) */ +/* In libgcc, CTORS_SECTION_ASM_OP must be a compile-time constant, + so we cannot use the definition above. */ +# ifdef __ARM_EABI__ +/* The .ctors section is not part of the EABI, so we do not define + CTORS_SECTION_ASM_OP when in libgcc; that prevents crtstuff + from trying to use it. We do define it when doing normal + compilation, as .init_array can be used instead of .ctors. */ +/* There is no need to emit begin or end markers when using + init_array; the dynamic linker will compute the size of the + array itself based on special symbols created by the static + linker. However, we do need to arrange to set up + exception-handling here. */ +# define CTOR_LIST_BEGIN asm (ARM_EABI_CTORS_SECTION_OP) +# define CTOR_LIST_END /* empty */ +# define DTOR_LIST_BEGIN asm (ARM_EABI_DTORS_SECTION_OP) +# define DTOR_LIST_END /* empty */ +# else /* !defined (__ARM_EABI__) */ +# define CTORS_SECTION_ASM_OP ARM_CTORS_SECTION_OP +# define DTORS_SECTION_ASM_OP ARM_DTORS_SECTION_OP +# endif /* !defined (__ARM_EABI__) */ +#endif /* !defined (IN_LIBCC2) */ + /* True if the operating system can merge entities with vague linkage (e.g., symbols in COMDAT group) during dynamic linking. */ #ifndef TARGET_ARM_DYNAMIC_VAGUE_LINKAGE_P |